Yes it can.
yes. anytime. makes 1 cm difference in with of the tire.
If they have the identical aspect ratio and wheel diameter as comparing a 215/70-15 to a 205/70-15 the 215 tire will be .56" taller.
No, it will not.
The width, by 10 mm
Yes
yes
NO, absolutely not. Never, ever, mix tire sizes on the same axle. You could put a set of 215 on the front and then a set of 205 on the rear but not a 205 & 215 on the same axle. Tires on each axle must be the exact same size.
I doubt it as there is 2" difference in diameter.
The chart on the related link indicates that the diameter of these tire sizes is different. See it for more information.
Yes, a 205/50R17 tire can fit in place of a 215/50R17 tire, but there will be a slight difference in width. The 205 tire is 10 mm narrower than the 215 tire, which may affect handling and stability slightly. Additionally, both tires share the same aspect ratio and diameter, so they will fit on the same rim and maintain similar overall circumference. Always check with a tire professional to ensure compatibility with your specific vehicle.
205/65/15 or 215/65/15
Can you put a 215 70 r15 tire and a 215 65 r15 tire on same car