Yes, but you'll need to buy new rims.
You can not replace it unless it's an old ford focus.
To find information about the most suitable tires for your 2005 Ford focus i suggest you go to www.reviewcars.com/2005-ford-focus where you should be able to find the relevant info.
how to replace a front fog light on a ford focus
at is the cost to replace a blower motor on a ford focus
how to replace water pump on 2001 ford focus
how to change 2000 ford focus quarter glass
Tools needed to replace front brakes 2002 Ford Focus?
How much does labor cost to replace a shift solenoid in a ford focus?
Any car that has tires can have snow chains put on those tires.
Rims and tires for a Ford Focus may be available at auto parts stores. They are also carried by specialty tire dealers such as Performance Plus Tire, JCWhitney, and Wheelfire.
Yes
It will cost you about $743.00 to replace a vacuum tube on a Ford Focus 2002.