just got 97 lxi 2.5 coupe noticed mount that runs length wise with car is rusted out of front, looks like connects to bottom of bumper is this repairable ??

 

Replace it. When ordering parts for your coupe, always be sure to specify that it is a coupe. The coupe was built by Mitsubishi. It has very few, if any, parts in common with the sedan/convertible, built by Chrysler.

 

What I ment was motor mount is rusted out from frame where it bolts in can it be welded?

 

You mean the frame is rusted out where the motor mount is bolted on. Anything can be repaired. The question is, is it worth it? Take it to some body and frame repair shops (collision shops) and get some estimates. Then you must decide whether you want to spend the money to save the car.
They may have to pull the engine to get in there. If so, the labor charges could be large. No way to tell that over the internet. Somebody will need to look at it.