A very thin layer of oil floats on top of water. Two drops of different dyes are placed far apart in the oil. Both dyes diffuse through the oil. Since the layer of oil is thin, we can assume the diffusion is two-dimensional. The first dye has a diffusion constant of Do, and it fills an area of Ao in the oil after a time To has passed. If the second dye has a diffusion constant of Do/4, what area will it fill afte a time of 2. To?