Check out Wilhelms' Geologic History of the Moon for more information about Copernicus crater and the lunar geologic timescale.
Discover the Copernicus ejecta deposits for yourself in the following images!
Full LROC NAC frame
100 m/pixel LROC WAC image
Related posts: Central Peak of Copernicus Crater
Copernicus Crater and the Lunar Timescale
Smooth floor in Copernicus crater