Make the angel food cake according to the package directions, using two loaf pans to bake the mix in
Remove from oven and let cool
Cut slices in the angel food cake and put a layer on the bottom of a 9x13 cake pan. Set aside
In a small bowl, mix together the hot water and coffee granules. Add in the cocoa powder and stir until dissolved
Pour half over angel food cake
Spread coffee ice cream evenly on top of angel food cake
Place remaining angel food cake over ice cream. If there isn't enough left to fully cover the pan, that is okay! Pour remaining coffee mixture on top of cake
Whip heavy cream with a stand mixer or handmixer until stiff and peaks form
Top the dessert with the whipped cream and the chopped chocolate chips