While sitting at the Hula Hut, you accidentally, and drunkedly, knock your frozen Margarita into the warm waters of "Lake " Austin. Given that the margarita can be approximated as 100g of ice at 0 degree C upon entry to the water and that the water temperature is 83.5 degress Farenheit, calculate the change in the entropy of the universe between the time that the contents of the glass enter the lake and when thermal equilibrium is subsequently restored. State any approximations made in your calculation.