Combine cake mix, pudding mix, oil, sherry, eggs and orange zest in large bowl of electric mixer and mix at medium speed 5 minutes.
Turn into oiled 9 inch tube pan.
Bake at 350 degrees F for 50 to 60 minutes, until cake tester comes out clean. Cool in pan on rack 10 minutes, then turn out and cool completely. Place on a serving platter and sprinkle with powdered sugar. If desired, serve sliced strawberries on side.