Coconut Refrigerator Cake
["1 box Duncan Hines white or yellow cake mix", "2 pkg. frozen coconut, thawed", "2 c. sugar", "2 (8 oz.) cartons sour cream"]
["Cake Mix:", "Mix and bake according to directions.", "Bake in 2 layers.", "Let cool and split each layer, making 4 layers."]
["Hines white", "frozen coconut", "sugar", "sour cream"]