An ice chest at a beach party contains 12 cans of soda at 2.41°C. Each can of soda has a mass of 0.35 kg and a specific heat capacity of 3800 J/(kg C°). Someone adds a 9.97-kg water melon at 23.5 °C to the chest. The specific heat capacity of watermelon is nearly the similar as that of water. Ignore the specific heat capacity of the chest and decide the final temperature of the soda and watermelon in degrees Celsius.