Can I use my Airport express to bridge WiFi?

I have a question today that seems simple, but I have yet to come across a good answer for it. I have a pc rack mount server that I wanted to put in another closet away from my xserves, but I do not have an ethernet connection in that closet, and the server does not have WiFi. I do have an AirPort express lying around and was wondering if I could somehow use that like a wireless adapter with it's ethernet connection. It is the original AirPort express, not the newest one. I am not in need of a super fast connection that ethernet would bring, but just need to get it wireless. I would buy an actual adapter, but I want to see if I can manage with what I have.

Thanks