Please solve in detail for mass transfer

A pan containing water is placed in a wind tunnel, where it is exposed to a 15mph (i.e m/h ). The pan contains water at a uniform depth of 0.5 incles and a length of 12ft in the direction which the wind is blowing and is quite wide. The water temperature is constant at 65F and the total pressure on the system is 1 atm. calculate the average convective mass transfer coefficient. calculate the time necessaly to evaporate all of the water