Copy one file to multiple directories

Question:
I need to be able to copy one file to multiple directories, the only problem is the multiple directories have item that is unknown.
So I have a file that is located in c:\folder1\somefile.txt
I want to copy this file to the users home directories:
\\server\homes\user1\folder1\
\\server\homes\user2\folder1\
\\server\homes\userA\folder1\
\\server\homes\userX\folder1\
\\server\homes\user5\folder1\ …..
Everything is the same except the user name changes
How can this be [...]