Build shelves into wall, but is it load bearing?
The exterior wall above this indicates that it is almost certainly load bearing. To remove the studs in the wall, you'll need to remove the weight with a temporary support that runs to the foundation floor. Then with the weight off you can remove the studs and reroute any wiring and plumbing in the process. You'll need to construct an appropriately sized header for the load it needs to carry, and that will rest on jack studs that need a continuous path all the way to the foundation and footers inside the foundation. The sizing for all of this depends on how much load you're carrying, and for that, you'll need an engineer that can review the floor plans and give the proper advice.