JP is right. So long as the wire has enough slack in it, you can position the outlet most anywhere you like. Make SURE you don't try to "stretch" the cable or apply any undue stress on it, and re-torque the connections at the lugs inside after re-mounting the device. (Of course I KNOW you will de-energize the circuit before doing any of this, right?)
You can mount it to the floor, but I try to avoid this as I don't like to have the an outlet facing up.
Yes, there is a way to recess a range outlet in the wall and use a flush receptacle, but this is tricky to do as a retrofit.