Cut the angel food cake into 2-inch cubes.

Alternately layer the angel food cake, coconut whipped cream, and berries in clear glasses or mason jars so you can see all the colors and textures.

Preheat oven to 325F degrees. Whisk the flour and powdered sugar in a large bowl.

In a standing mixer fitted with the whisk attachment beat the egg whites, cream of tartar, and salt on medium-low speed for about 30 seconds. Increase the speed to medium-high until the egg whites are very foamy and barely form soft peaks, about 45 seconds longer. Gradually add the granulated sugar and continue to beat on medium-high speed until whites are firm and glossy and hold stiff peaks (if you over beat, the meringue will look dry and curdled). Beat in the vanilla and lemon juice.

Sift one-third of the dry ingredients over the meringue. Continue to beat on low speed until just incorporated. Continue the sifting and mixing process 2 more times. Remove the bowl from the standing mixer and fold batter several times with a large spatula to make sure all ingredients are fully incorporated.

Pour half of the batter into ungreased tube pan. Using a spatula push the batter all around the pan as it will help with a more even cake after baking. Scrape remaining batter into pan and spread the top evenly.

Bake the cake about 40 minutes or until top is puffy and golden. Immediately invert the pan onto a baking rack. Allow the cake to cool at least 1 hour. Turn the cake right side up and using a thin metal spatula, cut around sides and loosen cake. Release the tube from the cake pan. Using thin metal spatula, loosen cake from bottom. Invert cake onto a plate or cake stand and remove bottom. Allow to cool throughly before cutting into cubes.