Spray bottom only of 13x9-inch pan with nonstick cooking spray. Beat butter and granulated sugar with electric mixer on low speed until light and fluffy. Add eggs, one at a time, beating well after each addition. Add yogurt, lemon peel, flour, baking powder, salt and baking soda; beat on low speed until smooth. Spread batter in pan. Cover and refrigerate at least 8 hours but no longer than 16 hours.