You wont have any rubbing issues as long as the wheels have the proper offset, should be 40-44. However, 235/45s are much shorter in overall diameter. I put 245/45s on the stock 17"x7" wheels and that is about the max width on those rims. If you go with a wider rim 17x8 you could easily run 245/45s or even 255/45s without any problems.
Let us know which wheels you are looking at, everyone has an opinion here and we love to share!