A drop of water has spread on a surface and is a relatively flat, circular shape (like a poker chip). It is sitting in air that is at 24C and 10% RH. After 2h, its area is 18% less than it started with. The drop's thickness stays constant during the evaporation due to physiochemical forces. If the droplet were in an oven at 80C and the same absolute humidity, how long would it take to lose the same amount of area?