Classic Coconut Cake

Name: Classic Coconut Cake
Ingredients: Nonstick vegetable oil spray; 2 cups all purpose flour; 1 1/3 cups (loosely packed) sweetened flaked coconut; 1 cup buttermilk; 1 teaspoon baking soda; 2 cups sugar; 1 cup (2 sticks) unsalted butter, room temperature; 5 large egg yolks; 4 large egg whites, room temperature; 3 1/3 cups powdered sugar; 1 8-ounce package philadelphia-brand cream cheese, room temperature; 1/2 cup (1 stick) unsalted butter, room temperature; 2 teaspoons vanilla extract; 1 cup (about) sweetened flaked coconut