Prepare and bake cake mix batter according to package directions, using a greased 13x9-in. baking pan., In a small bowl, add boiling water to gelatin; stir 2 minutes to completely dissolve. Cool cake on a wire rack 3-5 minutes. Using a wooden skewer, pierce holes in top of cake to within 1 in. of edge, twisting skewer gently to make slightly larger holes. Gradually pour gelatin over cake, being careful to fill each hole. Cool 15 minutes. Refrigerate, covered, 30 minutes., In a large bowl, beat cream cheese until fluffy. Fold in whipped topping. Carefully spread over cake. Top with strawberries. Cover and refrigerate for at least 2 hours before serving.