Compensated and available hours means as applied to any particular week for any employee: all hours worked by the employee for the Company or for any other employer in such week, plus all hours not worked by the employee in such week but for which he receives wages from any employer, plus all hours scheduled in such week for an employee who is not on layoff and which he has not worked for any reason other than lack of work, plus all hours scheduled in such week for an employee who is on layoff and which he has not worked for any reason other than lack of work after being given reasonable notice according to the established practice of the Company that such scheduled hours were available to be worked by him.