sudo permissions to edit apache's files
I would like to configure sudo to allow one specific user to create and change some files that are in a directory (only in this one) and that belongs to user apache.
Those files belong to a webserver and the user would like t be abble to change things in this directory. But the directory and its files belongs to apache. this means that the user should also be allowed to make a chown apache.
how may I configure sudoers?