No.
235/60/15 will not fit with 15x7 and 3.5" backspacing.
I don't think the 215/65/15 with 3.5" bksp will fit either. Maybe a 205/60/15 with 3.5" bksp. What are the rim specs on the 205/70/14 combination you have now?
225/60/15 with 15x7 and 4.25" backspacing may work.
I fit 245/60/15 with 15x7 and 4.25 backspacing, but I have to work the front lower inner fender. I push it out a couple inches with relocating the lower brace and drilling a new hole on the bottom fender lip more forward. It tweaks the fender outward.