You can breed that Eevee with Ditto and attempt to get a female Eevee.
Remember though, Eevee has a gender ratio of 7 males to 1 female, meaning roughly 1 out of 8 Eevee will be female.
Also, if you have enough Eevees for your purposes, you're done what you asked and can begin to train/evolve them into the Eeveelutions.
You can catch Ditto at the Giant Chasm.
Source: Experience